Wearable device band with ECG sensor



FIG. 1 is a perspective of a wearable device band with ECG sensor in accordance with the present invention;

FIG. 2 is a front view thereof;

FIG. 3 is a back view thereof;

FIG. 4 is a side view thereof; and,

FIG. 5 is another perspective view thereof.

The broken lines are directed to environment and form no part of the claimed design. 

CLAIM The ornamental design for a wearable device band with ECG sensor, as shown and described. 